Carriage clamp



Feb. 13, 1923. 1,444,912

. P. HAMMEL CARRIAGE CLAMP Filed Apr. 8, 1922 ATTORNEY cans-Ines CLAMP.

Application filed April 8,

To all whom it may concern:

Be it known that I, Pnnr HAMMEL, a citizen of the United States, andresident of New York city, in the county of New York and State of NewYork, have invented certain new and usetul Improvements in CarriageClan'ips, of which the following is a specification. i

This invention relates to so called carriage clamps used for fasteningblankets and the like on baby carriages to keep babies covered up. Theobject of the invention is to provide a commercially acceptable clamp ofincreased clamping strength.

In the accompanying drawings, forming a part hereof and illustrating twoforms of the invention,

Fig. 1 is a side view,

Fig. 2 a vertical sectional detail of the clamping jaw portion, and

Fig. 5% a transverse section at line g l ct Fig. 1, looking down, of oneform of the invention.

Fig. t is a perspective view of the'precovered, metal arcuate springused in both illustrated forms of the invention.

Fig. 5 is a side view,

Fig. 6 a vertical sectional detail of the clan'iping aw portion, and

Fig. 7 a transverse section at line 7-7 of 6, looking down, of thesecond illustrated form of the invention.

Fig. 8 is a perspective view showing the clamp in use.

In the illustrated forms of the invention, a metal, arcuate spring 1,the opposed ends of which are spaced apart by a gap :0, is preferablypro-covered with paint, enamel or other material 1 of the same color asthe exterior preferably celluloid encasement. Such encasement, in Figs.1, 2 and 3, comprises a split ring 2 of celluloid, with the ends of thering terminating in parallel r1 dial clamping jaws 3*3. The pie-covered,metal spring 1 is located on the peripheral portion. of the annulus 2,the clamping j aws 3-3 projecting through the gap. The annulus 2 iswider than the spring, and has its edges equally spaced apart from theedges of. the ring. The encasement also includes an outer split annulus4 of celluloid, this annulus being formed midway between its edges witha lengthwise extending groove indicated by 5 dimensioned widthwise andin depth to receive the spring 1. The split annulus 4,- is of the samewidth-as the an- 1922. Serial No. 550,936.

nulus 2 and the opposed contracting margins oil? the annuli 2 and 1 arecemented together 1 The spring is, therefore, nonadhesively confined inthe chamber formed :lor its reception, and the result is that thecompound spring clamp formed may be tiered within the limits of itsintended movement to act as a clamp, with but a minimum liability ofcracking the celluloid. The purposcol? pre coating or covering the metalring with paint, enamel or other material of the same color as thecelluloid split an'nuli is to prevent the objectionable appearance of adark body within the clamp. These carriage clamps are used in very greatnumbers. They are usually made of white or cream colored material andare frequently ornamented, as the consuming public is rather particularconcerning the appearance of these carriage clamps, which areextensively purchased as gifts for babies, If the pie-coating materialcracks or crazes, the fractured or impaired surface is practicallyconcealed from View.

In the form of the invention shown in Figs. 5, 6 and 7, the spring 1,without any. pre-coating, is wrapped witha plasticcelluloid strip, theperipheral portion of which is indicated by 6 and the innercircumferential portions of which are indicated by 7 these portionsbeing butt-jointed and cemented together along the inner circumferentialline 3 The ends of the wrapping' strip are carried radially outwardsthrough the gap as of the spring, and as each end would. be naturallyhollow, a celluloid filling is put in each end of the projections, andcemented in place, whereby the ends are converted into parallel radiallyprojecting cla'u'iping jaws 9 corresponding to the clamping jaws 3 ofthe form shown in Figs. 1, 2 and 3.

As shown in Fig. 8, the clamping'jaws 9 are spread when the clamp isused, one of the aws engaging a portion 10 of the frame of a babycarriage, and the other jaw clam ing a blanket 11 tightly thereto. Theclamps may be used for clamping the margins of a pair of blanketstogether, by spreading the jaws and allowing them to impinge upon theblanket margins.

What I claim is:

1. As a new article of manufacture, a car riage clamp comprising anencasement of hardened, plastic, material including a split ring, thefreeends of which form opposed clamping aws, an arcuate metal springnonadhesively disposed within d encasement, the clamping jaws of saidsplit ring projecting'through the gap of said arcuate spring.

2. An encasement of hardened translucent, plastic, material including asplit ri the ends of which form opposed clamping jaws, an arcuatemetallic spring non-adhesively arranged within said encasement, theclamping jaws of said split ring projecting through the gap of saidarcuate spring, 1, spring being pre-covered with bendable material ofapproximately the same color as the encasement.

3. As a new article o'l mamil acture, a carriage clamp com u'ising asplit annulus ot celluloid having radial projecting clamping jaw formingends; an arcuat metal spring non-adhesively mounted on the periphery ofsaid annulus, with the clamp aw forming ends projectirg' through the gapoi the spring; and a split exterior annulus of celluloid providedinteriorly with a lengthwise extending spring receiving groove; the twocelluloid members having contacting marginal surfaces cemented togetherat each side 01 the sprin As a new article of manufacture, a carriageclamp comprising a split annulus o t celluloid having radial projectingclamping jaw forming ends; an arcuate metal spring non-adhesivelymounted on the periphery of said annulus, with the clamp j aw formingends projecting through the gap of the spring; and a split exteriorannulus of celluloid provided interiorly with a lengthvise extendingspring receiving groove; the two celluloid members having contactingmarginal.surtaces cemented together at each side of the spring; thespring being precoated with bendable material of a color noncontrastingwith the color of the celluloid members.

5. As a new article of manufacture, a carriage clamp comprising a bentelastic member having projecting clamping jaw-torming ends incombination with a split bent spring between the ends of which theclamping jawiorming ends project, the spring being mounted on the bodyof said member and operative to li'orce the clamping jaws one towardsanother.

6. A clamp of the character described comprising a split ring oi springmetal, an

ornate covering of plastic n'iatcrial "for said ring, said covering ateach free end of said ring extending outwardly, and least a portionthereof being coi'istructed and arranged to form clamping jaws therefor.

7. A clamp of the character described comprising a split ring of springmetal, an ornate covering of plastic material for said ring, at least aportion of said. cover-ing being constructed and arranged to form arigid, extension for each free end 0]": said ring for the purpose ofproviding clamping aws therefor.

Signed at New York city, in the county of New York and State of NewYork, this 29th day of March A. D.

PERY HAMMEL.

